D is your answer since it is just Mn and O we need the highest ration. because C=12,but H=1,so H4= 1*4=4 so carbon has the highest mass percentage. Q. Assuming we have 100 g of the compound, this means we have 39.99 g C, 6.73 g H, and 53.28 g O. The answer is (3) SrO.The number of Sr is the same so if the compound has the smallest gram formula mass, it has the highest percent composition by mass of strontium. a. HCl. Now, we need to get the moles of each element in the compound. By calculating for the mass percent of oxygen in each of the choices, we find that choice c. {eq}Mg(NO_3)_2 {/eq} has the highest mass percent of oxygen. ... What is the molar mass of C8H18 ? Group of answer choices HCl H2O H2SO4 H3PO4 HF Furaneol has three elements in differing ratios, six carbon to eight hydrogen to three oxygen. (1 u is equal to 1/12 the mass of one atom of carbon-12) b. H_2O. C 39.97% H 13.41% N 46.62% However, each molecule has only 1 carbon in which simplifies this a lot. Find its molecular formula. 3. A) MnO B) Mn2O3 C) Mn3O2 D) MnO2 E) none of the above. Mass percent tells you the percentage of each element that makes up a chemical compound. Recall that mass percent is given by: % mass = mass X Total mass x 100. Most fertilizers consist of nitrogen-containing compounds such as NH3, CO(NH2)2, NH4NO3, and (NH4)2SO4. Which compound contains the highest percent by mass of hydrogen 1 answer below » Which compound contains the highest percent by mass of hydrogen? https://quizlet.com/55801470/chemistry-1122-midterm-ii-flash-cards Plants use the nitrogen content in these compounds for protein synthesis. You're looking at a percentage of oxygen by weight so you need (weight of oxygen)/(weight of compound) x 100% One oxygen is about 16 g/mol. 12.01 amu. ... Our tutors have indicated that to solve this problem you will need to apply the Mass Percent Formula concept. Calculate the percent Y by mass of the compound X Y.. H O (molar mass = 46.1 g/mol) is calculated as follows. What is the total mass (amu) of carbon in each of the following molecules? Which of the following compounds has the highest mass percent of "O"? Definitions of molecular mass, molecular weight, molar mass and molar weight. Trump to return to White House early from Florida, Dancer, 'Electric Boogaloo' star Quiñones dead at 65, Pet food recalled after at least 28 dogs die: FDA, Report: Player from '85 Bears SB team arrested for murder, Dawn Wells, Mary Ann on 'Gilligan's Island,' dies at 82, NFL coach explains how decision to cut QB went down, Small Colorado town confronts coronavirus variant, Strong early turnout in Ga. runoffs puts GOP on edge, The year in Meghan Markle: A royal exit, activism and loss, Man in hospital with COVID-19 after GOP holiday party. Examples of molecular weight computations: CO2, SO2. The percent composition can be found by dividing the mass of each component by total mass. (a) CH 4 (b) CHCl 3 (c) C 12 H 10 O 6 (d) CH 3 CH 2 CH 2 CH 2 CH 3. al2(co3)3 c12h22o11 c8h18 h2o. Compound X 2 2 2 2. Divide the mass of hydrogen in each compound by the molar mass of the compound and multiply by 100. Get your answers by asking now. Of the compounds listed in the question, water has the highest percent mass of hydrogen. [A] HCl [B] H 2 S [C] HF [D] H 2 SO 4 [E] H 2 O . An ionic compound has the following composition (by mass): Mg, 10.9%; Cl, 31.8%; O, 57.3%. Another way to ask the question is: which weighs least: 2 O atoms, 4 H atoms, 1 N atom or 1 O atom? Disclaimer: I'm going to estimate all my masses. In the calculations below, I have rounded the masses to whole numbers. 1. (H = 1; C = 12; O = 16). Combustion of 1.000 g of Ascorbic acid produced 40.9% C and 4.5% H. What is the empirical formula for Ascorbic Acid? Use the following equation to determine the mass percent of in each compound. 12.01 amu. You can get the mass of the elements on the Periodic Table. Solution for Which one of the following has the smallest mass percent of F in the compound? You take an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen) with a mass of 1.00 g, burn it in air, and collect 2.20 g of carbon dioxide and 0.400 g water. I'm looking for a piece of glassware from France? Kshitij G answered on June 06, 2015. Join Yahoo Answers and get 100 points today. You can view video lessons to learn Mass Percent Formula. Since the sample contains C, H, and O, then the remaining. H2O2. First we need to calculate the mass percent of Oxygen. 19. Answer d. 60.05 amu. Click here to see a video of the solution Thus SrO has the highest percent composition by mass of Sr New questions in Chemistry. Here, number of carbon atom is same in each compound. Correct answers: 1 question: What is the empirical formula of a compound if its percent by mass composition is 69.6% C, 8.34% H, and 22.1% O? It is simply calculated using a basic formula dividing the mass of the element (or solute) by the mass of the compound (or solution). 100% - 40.9% - … For a question like this you can actually just 'eyeball' it. asked Dec 12, 2019 in Important Questions by gaurav96 Expert (9.5k points) Mass percent composition of C = mass contribution of C/molecular mass of K 3 Fe(CN) 6 x 100%; Mass percent composition of C = 72.06 g/mol/329.27 g/mol x 100%; Mass percent composition of C = 0.2188 x 100%; Mass percent composition of C = 21.88% 46.6 % N. A compound is 62.03 % C, 10.41 % H, and 27.55 % O by mass. Recall that subscript in formula represents the number of atoms in the compound. Which compound has the highest mass percent C? What are the formula and name of the compound? Trump to return to White House early from Florida, Dancer, 'Electric Boogaloo' star Quiñones dead at 65, Pet food recalled after at least 28 dogs die: FDA, Report: Player from '85 Bears SB team arrested for murder, Dawn Wells, Mary Ann on 'Gilligan's Island,' dies at 82, NFL coach explains how decision to cut QB went down, Small Colorado town confronts coronavirus variant, Strong early turnout in Ga. runoffs puts GOP on edge, The year in Meghan Markle: A royal exit, activism and loss, Man in hospital with COVID-19 after GOP holiday party. since it is just Mn and O we need the highest ration. Which compound/formula name combination is INCORRECT? Mass percentage is one way of representing the concentration of an element in a compound or a component in a mixture. The total mass is 128.126, with carbon making up 72.064 or 56.2 percent. 2/3. Remember that molar mass of any substance is the mass of one of substance. Which compound has the highest percent composition by mass of strontium? so H2O has the higher percent by mass … How to solve: Which compound contains the highest percent by mass of hydrogen? A) SF₆ B) NaF C) XeF₂ D) KrF₄ A compound has the following percent (by mass) composition: 87.2% Ti (thallium, atomic number = 81), 2.6% C and 10.2% oxygen. 20. asked Oct 11 in Other by manish56 (-13,778 points) 0 votes. Which of the following has the highest mass percent of hydrogen? Get your answers by asking now. grendeldekt and 54 others learned from this answer The answer is (3). So the answer is (3). CO. What is the mass percent N in C2H8N2? The atomic masses are 12.01 g/mol C, 1.00 g/mol H, 15.99 g/mol O. What is the empirical formula of the compound? Find the Empirical and Molecular formula of the compound. 1 Approved Answer. Ascorbic acid (vitamin C) contains only C, H, and O. = 12.6% hydrogen by mass. c. H_2SO_4. 91.9% B. 1. The number of Sr is the same so if the compound has the smallest gram formula mass, it has the highest percent composition by mass of strontium. A compound is decomposed in the laboratory and produces 6.00 g N and 0.43 g H. What is the empirical formula of the compound? Percent Composition Calculator. 2. A) NaCl C KCI D) LiCI B) HCI 47) A 2,400-gram sample of an aqueous solution contains 0.012 gram of NH3. I'm looking for a piece of glassware from France. Its vapour density is 44. Calculate the mass percent composition of nitrogen in each of the fertilizers named in this problem. C3H6O. Also, the numerators are the mass of hydrogen in the compound in grams, and the denominators are the molar masses of the … 71.4% C. 28.6% D. 49.3% E. none of these 43. Answer b. Finding the mass percent requires the molar mass of the elements in the compound in grams/mole or the number of grams used to make a solution. Answer a. Calculate the mass percent composition of carbon in each carbon-containing compound:c. C2H2. The correct answer would be CH4 because 4H weighs less than 1N which weighs less than 1O which weighs less than 2O, and so CH4 has the highest mass percent of Carbon. Join Yahoo Answers and get 100 points today. Feb 11 2012 12:33 PM. B) Srl2 45) A) SrO C) SrCh D) SrS 46) Which compound has the smallest percent composition by mass ofchlorine? e. HF. ... which compound has the highest percent composition by mass of strontium. The percent composition is used to describe the percentage of each element in a compound. Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). which compound has the highest melting point? Still have questions? you have the same 2.016 grams hydrogen here, but you have 32.0 grams oxygen in this molecule. Divide the mass of C (since there is one mole of C in one mole of each of these compounds) by the total mass of the compound (C + the other elements). Answer c. 144.12 amu. 3/2. d. H_2S. Determine the mass percent of in. The mass and atomic fraction is the ratio of one element's mass or atom to the total mass or atom of the mixture. i think CH4 . Still have questions? Solution for Which compound contains the highest percent by mass of hydrogen? Calculate the empirical formula of the compound… a) CaSO 4 is calcium sulfate b) NaCO 3 is sodium carbonate c) K 2 S is potassium sulfide d) Mg(OH) 2 is magnesium hydroxide e) BaCl 2 is barium chloride. Y is known to be 60% X by mass. The mass percent of FeO originally in the mixture was: A. Methyl alcohol also called methanol which is CH3OH. Vitamins C is essential fot prevention of scurvy combustion of 0.9g of vitamins C givez 0.2998g of Co2and 0.819g of H2OWhat is empirical formula of Vitamin C A compound of lead has the following percentage composition: Pb = 90.66%, O = 9.34%. A compound has the following percentage composition by mass: Carbon - 54.55%, Hydrogen - 9.09% and Oxygen - 36.26%. Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%. High temperature high pressure treatment of a heavy metal. Which fertilizer has the highest nitrogen content? The number of moles in 12.0 g of C 2 6. A compound with the following mass percent composition has a molar mass of 60.10 g/mol. You know that Carbon weighs approximately 12, Hydrogen weight aproximately 1, oxygen aproximately 16, and Nitrogen aproximately 14. 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